Claims
- 1. A continuous film adhered to a surface which is liable to soiling by organic food deposits, said film having been dried and consisting essentially of:
- a. a food-safe, inorganic thickening agent, which thickening agent is present in an amount sufficient so that, during application to the surface, the film forms a continuous coating adhered to all desired portions of the surface;
- b. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the film is readily removable with water or an aqueous solution after the film has been dried and soiled; and
- c. A food-safe silicone polymer of the formula I
- (CH.sub.3).sub.3 SiO{SiO(CH.sub.3).sub.2 }.sub.n Si(CH.sub.3).sub.3(I)
- wherein n represents the number of repeating units needed to give the overall silicone polymer a minimum viscosity of 350 centistokes, which is present in an amount sufficient so that the film is transparent or trahslucent after it adheres to the surface, dries, and is heated; and optionally
- d. a food-safe mineral oil, wherein, when said food-safe mineral oil is included in said film, said mineral oil and said silicone polymer are present in a combined amount sufficient so that the film is transparent or translucent after drying and heating.
- 2. The film of claim 1 wherein said film is formed from an aqueous composition and the thickening agent is present in said film in a relative amount of about 0.5 to about 10 percent by weight of the aqueous composition and the water-soluble inorganic salt is present in said film in a relative amount of about 0.05 to about 67 percent by weight of the aqueous composition.
- 3. The film of claim 1 wherein the film is about 0.06 to about 15.0 mils thick.
- 4. A continuous film adhered to a surface which is subjected to heat and liable to soiling by baked-on organic food deposits, said film having been dried, consisting essentially of:
- a. a food-safe, inorganic thickening agent which is a smectite clay material and which is present in an amount sufficient so that the film produces a continuous coating adhered to the surface;
- b. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of phosphates and condensed phosphates in an amount sufficient so that the film is readily removable with water or an aqueous solution after soiling; and
- c. a food-safe silicone polymer having a minimum viscosity of about 350 centistokes, which is present in an amount sufficient so that the film is transparent or translucent after in adheres to the surface, dries and is heated; and optionally
- d. a food-safe mineral oil, wherein, when said food-safe mineral oil is included in said film, said mineral oil and said silicone oil are present in a combined amount sufficient so that the film is transparent or translucent after drying and heating.
- 5. The film of claim 4 wherein the thickening agent compries montmorillonite clay and wherein at least one water-soluble, inorganic salt is selected from the group consisting of tripotassium phosphate and sodium tripolyphosphate.
Parent Case Info
This is a division of application Ser. No. 08/339,258 filed Nov. 10, 1994 now U.S. Pat. No. 5,480,493 which is a divisional of Ser. No. 08/041,227 filed Mar. 31, 1993 now U.S. Pat. No. 5,389,138.
US Referenced Citations (33)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2069771 |
Sep 1971 |
FRX |
1039495 |
Aug 1966 |
GBX |
1275740 |
May 1972 |
GBX |
Non-Patent Literature Citations (6)
Entry |
Brown, Methyl Alkyl Silicones. A New Class of Lubricants, ASLE Transactions 9:31-35 (1966). |
Kirk-Othmer Encyclopedia of Chemical Technology, 922-62, 3rd. Ed. (1982). |
Concise Encyclopedia of Polymer Science and Engineering, 1048-59 (1990). |
McGraw-Hill Encyclopedia of Science and Technology, 414-15 (5th ed. 1982). |
Sobolevskiy et al., Thermooxidative Stability of Polymethylphenylsiloxames with Different End Groups, Heteroorganic Compounds (Russian), 3:13-16 (1962). |
Lipovetz et al., On the Thermo-and Oxidative Stability of Alkyl and Alkylphenylsilicones in the Presence of Various Inhibitors, Period. Polytech. Chem. Eng. (German), 2:259-63 (1958). |
Divisions (2)
|
Number |
Date |
Country |
Parent |
339258 |
Nov 1994 |
|
Parent |
41227 |
Mar 1993 |
|